Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Christian Lehr"'
Publikováno v:
International Journal of Turbomachinery, Propulsion and Power, Vol 9, Iss 1, p 8 (2024)
The acoustic properties of a single-stage centrifugal pump with low specific speed are investigated by means of compressible 3D CFD simulations (URANS) and experiments. In order to determine the pump’s acoustic transmission and excitation character
Externí odkaz:
https://doaj.org/article/0dd6d324c1a14489a2e76abb0d520333
Publikováno v:
International Journal of Turbomachinery, Propulsion and Power, Vol 4, Iss 3, p 16 (2019)
Subject of discussion are simulations and experimental investigations on the acoustic characterization of three single stage centrifugal pumps of different specific speed. In operation, these pump-types generate pressure pulsation at blade passing fr
Externí odkaz:
https://doaj.org/article/2b78eed068f7450695111c3d5ff4f425
Publikováno v:
Journal of Fluids Engineering. 145
A compressible finite volume Navier–Stokes flow solver is coupled to a method of characteristics for the seamless turbulent flow simulation of entire pump systems. For the pump, three-dimensional (3D) simulations including cavitating flow condition
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::18a3b0b406ee1f29d4826f4e481ac8bd
https://doi.org/10.1115/1.4062322
https://doi.org/10.1115/1.4062322
Autor:
Christian Lehr, Gunnar Lischeid
Publikováno v:
Hydrology and earth system sciences, 24(2):501-513
Groundwater level data is monitored by environmental agencies to support sustainable use of groundwater resources. For this purpose a high spatial coverage of the monitoring networks and continuous monitoring in high temporal resolution is desired. T
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::45e7dc01143cf8ed82119650601328e9
https://www.hydrol-earth-syst-sci.net/24/501/2020/
https://www.hydrol-earth-syst-sci.net/24/501/2020/
Autor:
Christoph Merz, Thomas Kalettka, Christian Lehr, Matthias Holländer, Tobias L. Hohenbrink, Marlene Pätzig, Gabriela Onandia, Florian Reverey, Gunnar Lischeid, Ralf Dannowski, Jörg Steidl
Publikováno v:
Limnologica, In Press
The pleistocenic landscape in North Europe, North Asia and North America is spotted with thousands of natural ponds called kettle holes. They are biological and biogeochemical hotspots. Due to small size, small perimeter and shallow depth biological
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7ce2476b65a1b114e5e8ca7dee995d85
https://doi.org/10.1016/j.limno.2017.01.003
https://doi.org/10.1016/j.limno.2017.01.003